334 T'ransactions.—G eology. 
survey was extended in that direction in the summer of 1862, and resulted in 
finding several localities extremely rich in Reptilian remains. These are 
described in his report,* and his collections, having been forwarded to the 
Colonial Museum, form part of the material of the present communication. 
In 1871, Mr. H. H. Travers made a further exploration at the Amuri 
Bluff; and during the early part of this year the relations of the different 
formations have been studied by Captain Huttont; and a skilled collector, 
Mr. Alexander McKay, has also been employed to make an exhaustive 
collection of the Reptilian remains and associated fossils. 
These different explorations have led to the accumulation of several tons 
of blocks of cement-stone containing fossil bones, and during the last three 
months these fossils have been worked out of the hard matrix by Mr. McKay. 
The general result is, that portions of 43 individual reptiles, mostly of gigantic 
size and all of aquatic habits, and belonging to at least 13 distinct species, have 
been discovered. These species represent two distinct groups, the first, with 
flat or slightly bi-concave vertebre, being true Enaliosaurians, belonging to 
the genera Plesiosaurus, Mauisaurus,t (gen. nov. allied to Elasmosaurus of 
Cope), and Polycotylus, Cope ; and the other having proccelian vertebra, as in 
most recent Lacertilia and Crocodiles, but provided with swimming paddles, 
and therefore representing probably the order Pythonomorpha of Professor 
Cope.§ This order is represented in the collection by two distinct genera, 
Liodon (Owen), and Taniwhasaurus,| (gen. nov. allied to Clidastes of Cope). 
In addition there are several fragmentary remains, which, for the present, 
I only venture to place provisionally under one or other of these groups, and 
two vertebra, which appear to belong to an exceptional form of the genus 
Crocodilus. 
Lastly, from the lower mesozoic strata of Mount Potts, in Canterbury, a 
single vertebra was collected by Dr. Haast, which I refer to the genus 
Ichthyosaurus. s 
The following is a schedule of the different Saurian remains referred to in 
this paper, with the localities where they were found, and the names of the 
collectors. When not otherwise stated the specimens are in the Colonial 
Museum at Wellington :— 
* Rep. Geol. Surv. N.Z., 1870-71, p. 25. 
T Geol Rep., 1872-73, p. 36. 
£ After Maui, the traditional discoverer of New Zealand. 
$ “Оп the Fossil Reptilia of the Cretaceous Rocks of Kansas,” by P. 
$. i y Professor E. D. Cope. 
PRSTE I on Geol. of Wyoming, F. V. Hayden, 1871, p.385. I have not been 
able to refer to the original paper, by Professor Cope, in the Trans. A Phi 
1868-70, for the definition of this order. PCM 
| After the Taniwha, or fabled sea monster of the Maori. 
"i Rep. Geol. Surv., 1873, p. 6. 
